Mobile Toilet Fecal Discharge

Mobile toilet fecal discharge is mainly achieved through various technologies, covering physical discharge, biological treatment, resource utilization, and other directions. The specific methods are as follows:

1. Physical Discharge Technologies

• Gravity Sewage Discharge: Utilizing terrain elevation differences, feces are directly discharged into the municipal sewage network through pipes with a diameter of 100-150 millimeters. This method is low-cost and simple to operate but relies on terrain conditions.
• Vacuum Collection System: A vacuum pump creates negative pressure to rapidly suck feces into a collection tank. The pipe diameter is only 50-80 millimeters, making it suitable for space-constrained scenarios, but the equipment cost is relatively high.
• Compression Discharge Technology: Mechanically compresses fecal volume (compression ratio of 1:3 to 1:5), reducing transportation frequency and suitable for centralized treatment scenarios.
• Lifting Pump System: When feces accumulate to a certain amount, a lifting pump raises them to a height of 5-10 meters before discharging them into a sewage pool, solving the discharge problem in low-lying areas.
• Smart Sensing Discharge System: Sensors monitor storage levels and automatically open valves to discharge feces to designated facilities, improving efficiency and reducing manual intervention.

2. Biological and Chemical Treatment Technologies

• Biodegradation Technology: Microbial communities are added to decompose organic matter. Solid feces are mixed with wood chips and fermented into carbon dioxide and water (degradation rate ≥ 99%). Urine is treated through aeration for reuse as reclaimed water.
• Integrated Sewage Treatment Equipment: Multiple processes such as sedimentation, filtration, and disinfection are used to treat feces and domestic sewage. The treated water can be used for toilet flushing, with a daily treatment capacity ranging from several to tens of cubic meters.
• Recirculating Water Flush Type: Biomembrane technology combined with aerobic/anaerobic treatment accelerates decomposition by adding microbial strains. The treated water is recycled, saving over 80% of water and reducing pumping frequency.

3. Resource Utilization Technologies

• Ecological Circulation Technology: Feces are converted into organic fertilizer through fermentation and composting processes to create high-quality fertilizer, achieving resource circulation.
• Resource-Based Zero-Discharge Technology: For example, closed-loop fermentation systems convert fecal water into organic fertilizer and water vapor, achieving zero discharge and suitable for rural or areas without sewage networks.

4. Special Scenario Adaptation Technologies

• Eco-Friendly Collection Bags: Made of biodegradable materials, these bags can be directly replaced when full, preventing leaks and odors, and are suitable for temporary or drainage-free locations.
• Dry Packing Type: Biodegradable plastic bags collect excreta, which are automatically replaced and centrally treated, requiring no water flushing and suitable for water-scarce areas.
• Foam Sealing Type: Foaming liquid covers the toilet to block odors, with extremely low water consumption (only requiring hand-washing water), inhibiting bacterial transmission, and suitable for high-traffic or epidemic prevention scenarios.
• Vacuum Adsorption Type (Vehicle-Mounted): A vacuum pump sucks excreta into a collection tank, saving water and facilitating transportation, suitable for mobile scenarios.